A latch, as for a door, having a handle movable to latch and unlatch the door and a removable lock located within the handle. The lock is provided with a stop engaging finger on its end and a retractable bolt on its side. The lock receptacle in the handle has a plurality of bolt engaging surfaces th
A latch, as for a door, having a handle movable to latch and unlatch the door and a removable lock located within the handle. The lock is provided with a stop engaging finger on its end and a retractable bolt on its side. The lock receptacle in the handle has a plurality of bolt engaging surfaces therein which hold the lock in the handle in a locked position wherein the finger engages the stop to prevent movement of the handle, hold the lock in the handle in an unlocked position in which the finger does not engage the stop, and provide a means whereby the bolt may be completely retracted for lock removal.
대표청구항▼
1. A latch having a removable lock comprising: a handle, movable to latch and unlatch the latch, having a bore therethrough; a lock located within said bore, said entire lock being selectively axially and rotationally movable therein, said lock having fixed on its end a finger extensible from sa
1. A latch having a removable lock comprising: a handle, movable to latch and unlatch the latch, having a bore therethrough; a lock located within said bore, said entire lock being selectively axially and rotationally movable therein, said lock having fixed on its end a finger extensible from said bore for engagement with a stop to maintain the handle in a latched position, and a key operated retractable bolt on its side; means engageable by said bolt to hold the lock within said bore in a locked, finger extended position and an unlocked, finger retracted position; and means responsive to rotation of the lock to retract said bolt for lock removal. 2. A latch having a removable lock as described in claim 1 wherein said engageable means is a pair of curbs disposed within said bore. 3. A latch having a removable lock as described in claim 1 wherein said retraction means is a cam surface peripherally located within said bore, engageable by said bolt when said lock is located in a finger extended position and said bolt is in a partially retracted, unlocked position, whereby rotation of said finger rotates the removable lock causing the bolt to follow said cam surface, retracting the bolt. 4. A latch having a removable lock as described in claim 1 further comprising a biasing means to bias said removable lock from a locked to an unlocked position and, when said bolt is retracted, from said bore. 5. A latch having a removable lock as described in claim 1 wherein said lock has a pair of diametrically opposed recesses opposing said finger, said recesses being engageable by a tool to impart rotation to said lock. 6. A lock with a removable lock mechanism, comprising: a housing with a cylindrical bore; a lock mechanism disposed within said bore, said entire lock mechanism being selectively axially and rotationally movable therein, the mechanism having a stop engaging finger fixed on its end and a laterally extending bolt which engages a shoulder in the bore to retain the mechanism therein, said bolt being partially retracted by actuation of the lock mechanism for limited axial movement of the mechanism in the housing bore; and a peripheral cam surface in said cylindrical bore for engagement with said bolt upon rotation of said mechanism in the bore, to affect complete retraction of the bolt for removal of the mechanism from the housing. 7. A latch for a door, having a removable lock comprising: a handle, rotatable to latch and unlatch the door, having a bore therethrough; a lock removably located within said bore, said entire lock being selectively axially and rotationally movable within said bore, said lock having a finger fixed on its end the distal end of which finger selectively extends from said bore and engages a mating surface which maintains the handle in a latched position, and having a key operated retractable bolt on its side; a first surface, within said bore, engageable by said bolt when extended in a locked position, to hold said lock in said bore such that the finger engages the mating surface; a second surface, within said bore, engageable by said bolt when partially retracted in an unlocked position, to hold said lock within said bore such that said finger is disengaged from said mating surface; and a third surface, within said bore, engageable by said bolt when in a partially retracted unlocked position, to completely retract said bolt for lock removal in response to rotation of said lock. 8. A latch for a door as described in claim 7 wherein said first and second surfaces are a pair of axially spaced stepped curbs. 9. A latch for a door as described in claim 7 wherein said third surface is a cam surface peripherally disposed within said bore such that said lock must be located within said bore in a finger extended position in order for said bolt to engage said surface, whereby rotation of said lock is imparted by rotation of said extended finger. 10. A latch for a door as described in claim 7 wherein said third surface is a cam surface peripherally disposed within said bore and said lock has on its end opposing said finger a pair of tool engageable recesses whereby rotation of said lock is imparted by rotation of said tool. 11. A latch for a door as described in claim 7 wherein said lock contains a spring to bias said bolt towards an extended position. 12. An improved lock for a latch of the type operable by rotation of a handle, the improvement comprising: a lock receptacle on said handle having a bore therethrough; a removable lock disposed within said bore, said entire lock being selectively axially and rotationally movable within said bore, said lock having a stop engaging finger fixed on its end and a retractable bolt on its side; and a plurality of bolt engaging surfaces within said bore to hold the lock, while locked, within said bore with said finger engaging the stop, to hold the lock within said bore, while unlocked, with said finger disengaged from said stop, and to retract said bolt upon rotation of said lock within said bore for removal of said lock from said bore. 13. An improved lock as described in claim 12 wherein the plurality of bolt engaging surfaces are comprised of: a pair of axially spaced stepped curbs; and a cam surface on the periphery of said bore engageable by said bolt when said lock is unlocked, whereby rotation of said lock causes said bolt to follow the cam surface for retraction of said bolt.
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이 특허를 인용한 특허 (11)
Laabs Timothy P. ; Ott Brian M. ; Crocco John J., Combined lock and linear actuator.
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